PENGGUNAAN APLIKASI YOUTUBE SEBAGAI MEDIA DAKWAH DI ERA PANDEMI COVID-19

The existence of the Covid-19 pandemic is the background for holding this research, in which health protocols prohibit and limit activities that gather large numbers of people. This also has an impact on religious activities such as da'wah which require alternative solutions, because previously it was carried out face-to-face and gathered. The alternative offered in this study is through the social media platform Youtube. The purpose of this study is to analyze whether the Youtube platform is effectively used for preaching and to find out the methods applied in da'wah through the Youtube platform. This study uses a qualitative method, where data is collected from reliable sources such as explanations of the Qur'an and Hadith. The results of this study indicate that da'wah through the Youtube platform in the era of the Covid-19 pandemic has several advantages compared to conventional da'wah. Youtube has many advantages, such as being widely accessed by various groups in terms of sharing video content. Youtube and da'wah also have a relationship with segmentation that both target audiences. In this case, it is hoped that ustaz, scholars, and preachers can use Youtube media by using the available features. This also needs to be followed by good and correct da'wah methods in accordance with Islamic teachings

Study of Covid 19 Occurrence in Relation to Masks and Hand Sanitizers Use

Covid-19 is an infectious disease that has the potential to cause a public health emergency. Therefore, preventive measures against these types of infectious diseases must be carried out as soon as possible. Indonesia as a rule of law, therefore the prevention of these types of infectious diseases must be established in a rule or regulation. The purpose of this literature review is to describe an intervention regarding the use of masks and handsanitizers against the incidence of Covid 19. The database searches used include ProQuest, SciVerse Science Direct, Scopus, Pubmed, Cohcrane library, Springer and Sci-hub. Keywords used in the search for articles were mask, hand sanitizer, preventive, COVID-19. There are 18 journal articles obtained through objective analysis, topic suitability, research method used, sample size, research ethics, the results of each article, and the limitations that occur. There have been effective results in implementing the distribution of covid 19 events related to the use of masks and hand sanitizers. There have been effective results in using masks and hand sanitizers against the incidence of covid-1

Tumour acidosis: from the passenger to the driver's seat.

The high metabolic demand of cancer cells leads to an accumulation of H(+) ions in the tumour microenvironment. The disorganized tumour vasculature prevents an efficient wash-out of H(+) ions released into the extracellular medium but also favours the development of tumour hypoxic regions associated with a shift towards glycolytic metabolism. Under hypoxia, the final balance of glycolysis, including breakdown of generated ATP, is the production of lactate and a stoichiometric amount of H(+) ions. Another major source of H(+) ions results from hydration of CO2 produced in the more oxidative tumour areas. All of these events occur at high rates in tumours to fulfil bioenergetic and biosynthetic needs. This Review summarizes the current understanding of how H(+)-generating metabolic processes segregate within tumours according to the distance from blood vessels and inversely how ambient acidosis influences tumour metabolism, reducing glycolysis while promoting mitochondrial activity. The Review also presents novel insights supporting the participation of acidosis in cancer progression via stimulation of autophagy and immunosuppression. Finally, recent advances in the different therapeutic modalities aiming to either block pH-regulatory systems or exploit acidosis will be discussed